diff --git a/packages/api/src/entities/Contribution.ts b/packages/api/src/entities/Contribution.ts
index 8c53519..529738c 100644
--- a/packages/api/src/entities/Contribution.ts
+++ b/packages/api/src/entities/Contribution.ts
@@ -10,6 +10,9 @@ export class Contribution extends Node<Contribution> {
   @Property({ columnType: 'text' })
   nodeID: string;
 
+  @Property({ columnType: 'text' })
+  authorGithubId: string;
+
   @Property({ columnType: 'text' })
   description: string;
 
@@ -21,13 +24,14 @@ export class Contribution extends Node<Contribution> {
 
   @Property({ columnType: 'timestamp' })
   contributedAt: Date;
-
+  
   constructor({
     nodeID,
     description,
     type,
     score,
     contributedAt,
+    authorGithubId,
     ...extraValues
   }: ContributionConstructorValues) {
     super(extraValues);
@@ -36,5 +40,6 @@ export class Contribution extends Node<Contribution> {
     this.type = type;
     this.score = score;
     this.contributedAt = contributedAt;
+    this.authorGithubId = authorGithubId;
   }
 }
diff --git a/packages/api/src/migrations/0007-add-author-github-id-to-contribution-table.ts b/packages/api/src/migrations/0007-add-author-github-id-to-contribution-table.ts
new file mode 100644
index 0000000..5d225f0
--- /dev/null
+++ b/packages/api/src/migrations/0007-add-author-github-id-to-contribution-table.ts
@@ -0,0 +1,12 @@
+import { Migration } from '@mikro-orm/migrations';
+
+export class Migration20211122225031 extends Migration {
+
+  async up(): Promise<void> {
+    this.addSql('alter table "contribution" add column "authorGithubId" text not null;');
+  }
+
+  async down(): Promise<void> {
+    this.addSql('alter table "contribution" drop column "authorGithubId";');
+  }
+}